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Finding the Fourth Proportional to 570,761.56, 787,648.98 and 329,042.98

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Solution

The fourth proportional to 570,761.56, 787,648.98 and 329,042.98 is: 454,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.56 : 787,648.98 = 329,042.98 : x
  2. Step 2: Convert to fraction form
    570,761.56/787,648.98 = 329,042.98/x
  3. Step 3: Cross multiply
    570,761.56x = 787,648.98 × 329,042.98
  4. Step 4: Simplify right side
    570,761.56x = 259,170,367,573.16
  5. Step 5: Solve for x
    x = 259,170,367,573.16/570,761.56
  6. Step 6: Final answer
    x = 454,078.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.